Re: Forward function declarations - relocal command

[Robert Virding <robert.virding@...>]

Sorry I don't WHY there is a problem. I assume I would get the same effect with a recursive function. So

local f
local f = function () <ref to f> end

doesn't work but the following doesn't

local f
f = function () <ref to f> end

The second one is from the 5.2 manual as the expansion for

local function f () <ref to f> end

Why is it like that? Does it need to be like that? Have I missed something in the manual? Or is it just an implementation detail?

Robert

----- Original Message -----
> From: "Roberto Ierusalimschy" <roberto@inf.puc-rio.br>
> To: "Lua mailing list" <lua-l@lists.lua.org>
> Sent: Monday, 19 November, 2012 1:58:21 PM
> Subject: Re: Forward function declarations - relocal command
> 
> > How do other people deal with forward declarations?
> 
> I tend to define any function before using it, so I only need a
> forward
> declaration when the code has indirect recursion. Even in that case,
> I try to minimize the backward edges in the call graph. (For
> instance,
> the Lua parser has only two forward declarations, one for 'expr'
> (expressions) and one for 'statement', which correspond to the main
> recursive non-terminals in the grammar.)
> 
> In the few cases left, I think comments should be enough.
> 
> -- Roberto
> 
>